the sharpness is down to the F/stop, to put it in presceptive, a large format equation of a 50mm F/1.4 lens (35mm), is actually 188mm at F/5.3, (using 5x4 as a reference).
Yeah, I understand that, but I'm a big fan of superfast primes on large backs. The plan would be to make an adjustable aperture ring. The reason it's not so sharp is mainly down to the plastic elements on the inside, I think.
damn for that price its tempting - would just need to bodge an aperature mech and shutter onto it somehow... Ultra fast ultra wide on 4x5 :)
Yeah, I understand that, but I'm a big fan of superfast primes on large backs. The plan would be to make an adjustable aperture ring. The reason it's not so sharp is mainly down to the plastic elements on the inside, I think.
mmhm.
Very Nice.